How we cite our quotes: (Chapter.Paragraph)
Quote #1
Tristran Thorn, at the age of seventeen, and only six months older than Victoria, was halfway between a boy and a man, and was equally uncomfortable in either role; he seemed to be composed chiefly of elbows and Adam's apples. (2.25)
Tristran sounds like he's in that adorably awkward phase that teenage boys go through as they pass from youth into adulthood. Well, sometimes it's more awkward than adorable, as it sounds like might be the case here. He'll grow into whatever he's supposed to be eventually (or, you know, over the course of the book).
Quote #2
And, too ignorant to be scared, too young to be awed, Tristran Thorn passed beyond the fields we know […] and into Faerie. (2.147-148)
Setting out into Faerie without knowing a thing about it could be considered dangerous or stupid, but Tristran is apparently too young to have thought of that. He's also young enough that he maybe doesn't have the right appreciation for all the wondrous things he'll encounter there.
Quote #3
But the youth of today were a pasty lot, with none of the get-up-and-go, none of the vigor and vim that he remembered from the days when he was young […] (3.7)
The dying lord of Stormhold isn't too pleased with kids these days, specifically his kids. Why, by the time he was twenty, he'd killed all his male siblings to ensure that he'd be the one to take the throne. And he's still got three sons living—unbelievable. What are these kids doing, sitting around and picking their noses instead of showing some initiative?